Augustus AE18 of Imbros, Thrace. 27 BC-AD 14.

Bare head of Augustus right (star behind head).
IMB beneath caduceus between caps of the Dioskuri, each 
surmounted by a star.

RPC 1736; Varbanov 2995; Paris 1937; SNG Cop 967; Bern R4142.

Image use courtesy of the Münzkabinett, Berlin.